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Nursing Elites

ATI TEAS 7

Anatomy

1. Which of the following is NOT a function of the cardiovascular system?

Correct answer: D

Rationale: The cardiovascular system is responsible for transporting oxygen to cells (option A), maintaining blood pressure (option B), and carrying waste products to the kidneys for removal (option C). However, initiating the immune response (option D) is not a function of the cardiovascular system. The immune response is primarily carried out by the immune system, which includes organs like the spleen and lymph nodes. While the cardiovascular system does play a role in immune function by transporting immune cells and antibodies, it is not responsible for initiating the immune response. Therefore, option D is the correct answer.

2. Which of the following statements about prions is TRUE?

Correct answer: A

Rationale: Rationale: A) This statement is true. Prions are infectious agents composed entirely of protein, lacking nucleic acids such as DNA or RNA. They are known for causing neurodegenerative diseases in animals and humans. B) This statement is false. Prions are not easily destroyed by common disinfectants due to their unique structure and resistance to conventional sterilization methods. C) This statement is false. Prions are not a type of antibiotic. They are a distinct class of infectious agents. D) This statement is false. Prions are not live organisms but rather misfolded proteins that can induce abnormal folding in normal proteins, leading to disease.

3. In the context of optical fibers, chromatic dispersion refers to:

Correct answer: B

Rationale: In optical fibers, chromatic dispersion refers to the spreading of light pulses due to different colors traveling at slightly different speeds. This occurs because different wavelengths of light experience varying refractive indices in the fiber, causing them to propagate at different velocities. As a result, the light pulses spread out over distance, leading to a distortion of the transmitted signal. Understanding chromatic dispersion is crucial in optical fiber communications to minimize signal degradation and maintain data integrity.

4. Which type of energy is associated with the random motion of particles in a substance?

Correct answer: c

Rationale: Thermal energy is related to the random motion of particles in a substance and is associated with temperature.

5. Which organ is responsible for filtering blood and removing waste products?

Correct answer: B

Rationale: The correct answer is B: Kidneys. The kidneys are responsible for filtering blood and removing waste products from the body through the production of urine. The liver plays a role in detoxifying the blood and producing bile, while the spleen is involved in filtering blood and removing old or damaged red blood cells. The pancreas is primarily responsible for producing digestive enzymes and regulating blood sugar levels. Therefore, the kidneys are the specific organ dedicated to the filtration of blood and removal of waste products, making them the correct choice in this question.

6. A car is traveling at a constant speed on a straight road. What is the net force acting on the car?

Correct answer: D

Rationale: Since the car's speed is constant, there is no acceleration, and according to Newton's first law, a net force of zero is required.

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